Awning arm construction



May 1932- H. c. HEISER I 1,856,161

AWNING ARM CONSTRUCTION Filed Nov. 13, 1931 INVENT OR 19 4 BY H C flel'aer $2M ATTORINEYS Patented May 3, 1932 UNITED STATES PATENT OFFICE HENRY C. HEISER, OF CLEVELAND, OHIO, ASSIGNOR TO THE AS'IBUP COMPANY, 01 CLEVELAND, OHIO, A CORPORATION OF OHIO AWNING ARM CONSTRUCTION Application filed November 13, 1931.

My invention relates to awning arm construction, and more particularly to attachments for laterally folding pivot-ally mounted awning arms.

In prior awning arm constructions of this type, tension means have been provided for yieldingly urging the folding arms toward extended position to aid in opening the awning, but in using awnings of various sizes and weights or in adjusting the angular positions of awning arms relative to the supporting wall, difficulty is experienced in that the load acted upon by the tension means is correspondingly varied.

It is an object of the present invention to provide an adjustable connection between the tension means and the awning arms for establishing a predetermined tension upon the latter regardless of the size of the awning.

Another object is to provide means for n'laintaining the force exerted by the tension means uniform for various angular positions of the arms relative to the supporting wall.

These and other objects are accomplished in the present invention, which may be stated in general terms as including a wall bracket secured to a supporting wall, an arm mounting bracket having a pivotal connection with the wall bracket, a pair of laterally folding arms pivotally mounted at one end on the arm mounting bracket, means for moving the arm mounting bracket to different positions relative to the wall bracket and for maintaining the arm mounting bracket in adjusted position, a spring having a swivel connection at one end with the pivotal connection between the brackets, and clamping means for adjustably connecting the other end of the spring with the adjacent awning arm.

In the drawings- Figure 1 is a fragmentary plan view of an awning showing the folding awning arms in extended position;

Fig. 2 is a transverse section through the awning showing the folding arms in extended position and showing an adjusted position of the arms relative to the supporting wall in dot-dash lines;

Fig. 3 is a fragmentary sectional view as on line 3-3, Fig. 2;

Serial No. 574,685.

Fig. 4 is a View similar to Fig. 2 of a modified awning arm construction;

Fig. 5 is a fragmentary view similar to Fig. 2 showing a modified form of clamping means for adjustably securing one end of the tension spring to the adjacent arm; and

Fig. 6 is a sectional view as on line 6-6, Fig. 5.

Similar numerals refer to similar parts throughout the several views.

Referring first to Figs. 1 and 2, a roller 10, on which the awning fabric 11 is rolled, is mounted in position on the wall 12 of a building in any well known manner. An awning pole 13 is secured adjacent the forward edge of the fabric 11, and laterally folding arms indicated generally at 14 are interposed between the pole 13 and the wall 12.

A wall bracket 15 is preferably provided for each pair of folding arms, and an arm mounting bracket 16 is mounted on the bracket 15 by means of the bolt 17 which forms a pivotal connection between the brackets.

The double bar awning arm 18 is located adjacent to the wall bracket and hinged or pivotally connected to the arm mounting bracket as at 19. The other arm 20 is pivotally connected to the arm 18 as at 21, and is pivotally connected at its outer end to the awning pole 13 as at 22. As indicated in Fig. 1, as the awning fabric is rolled upon the roller 10, the awning arms 18 will swing laterally about the pivots 19, and at the same time the arms 20 will swing in a laterally opposite direction about the pivots 21 until the arms 18 and 20 are folded or collapsed into the desired position.

The arms 18 and 20 are positioned so that when the awning fabric is unrolled to the position shown in Fig. 1, the pivots 21 do not pass center, andwhen the fabric is rolled up the arms will fold into the desired position.

Means for yieldingly urging the arms to ward extended position may include a tension spring 23 connected between the pivotal connection 17 and the adjacent awning arm 18.

The inner end ofthe spring 23 is preferably connected to a lug 24 which is in turn swiveled on or pivotally connected to the bolt the arms for any size of awning.

Means for moving the bracket 16 to adjusted positions relative to the bracket 15 and for maintaining the bracket 16 in adjusted position, may include a bolt 27 secured to the 15a formed in the bracket 15 and having a head 28. An adjusting screw 29 is preterably rotatably mounted in a lug 30 on the bracket 15 and is screwed into the head 28 of the bolt 27.

By turning the screw 29, the bracket 16 is rotated about the pivot 17 relative to the bracket 15, and the bracket 16 is maintained in adjusted position by the threaded engagement between the head 28 and the screw 29. Rotation of the bracket 16 moves the awning arms to various angular positions such as indicated in dot-dash lines in Fig. .2. During this movement of the arms, the pivotal connection between the bolt 17 and the lug 24 maintains a constant distance between the bolt 17 and the clamp .25 so as to maintain a uniform tension on the spring 23 for all adjusted positions of the arms.

In the modified form shown in Fig. 4, the inner awning arm consists of a single bar arm 18, which, is pivoted at its outer end to the arm 20 and at its inner end to the wall bracket 15 as at 19. The tension spring 23 is connected at its inner end to a lug 32 on the bracket 15, and a clamp 25 adjustably connects the outer end of the spring with the arm 18.

The modified clamp 25" shown in Figs. 5 and 6 is adapted to be used with the double bar arm shown in Fig. 2, and is clamped around both members of the arm by means of the bolt 26". A lug 33 is formed on the clamp 25 for connection with the spring 23.

I claimi 1. Awning arm construction including a wall bracket, an arm mounting bracket on the wall bracket, a pivotal connection between the brackets, a pair of folding arms pivotally mounted at one end on the arm mounting bracket, means for moving the arm mounting bracket to different positions relative to the wall bracket and for maintaining the arm mounting bracket infladjusted position, a spring connected at one end to the adjacent arm, and means providing a swivel connection between the other end of the spring the adjacent arm. bracket 16, passing through an arcuate slot 7 of the spring to the pivotal connection between the brackets, and means adjustably connecting the other end of the spring with 3. Awning arm construction including a wall bracket, a pair of folding arms pivotally mounted on the bracket, a spring connected at one end to the bracket, and means adjustably connecting the other end of the sprin to the adjacent arm.

at. i wning arm construction including a wall bracket, an arm mounting bracket on the wall bracket, a pivotal connection between the brackets, a pair of folding arms pivotally mounted at one end on the arm mounting bracket, means for moving the arm mounting bracket to different positions relative to the wall bracket and for maintaining the 2 arm mounting bracket in adjusted position, a lug swiveled on the pivotal .connection between the brackets, a spring connected at one end to the lug, and aclamp adjustably secured to the adjacent arm and connected to the other end of the spring.

In testimony that I claim the above, I have hereunto subscribed my name.

HENRY C. HEISER. 

